Feasibility study of topology optimization of the control system frame for the missile with canard configuration

Abstract

Purpose The purpose of this paper is to describe the new method for optimizing the topology of the control system frame for a canard missile to create its efficient model. Determining the minimum volume of the part risked losing some of the mechanical interfaces and functionality required of the frame. The proposed method must cope with these requirements and include a validation loop of the improved solution proposed by the software. The processing of the mathematical model to a printable form must take into account manufacturing technologies limitations and appropriate curvature continuities to avoid stress concentrations. Design/methodology/approach Real examples from the aerospace industry are presented and the process of determining a prototype is described. The optimization assumed leaving the largest volume of the domain. Strength analyses were performed on both the assembly fasteners and the robust prototype. Once all boundary conditions were validated, topological optimization was performed in the ANSYS environment. The algorithm of the optimization was presented. Findings Obtained fatigues showed the vast potential of topology optimization, efficient method of weight reduction in specific situations. It can be considered as an innovative approach to the manufacturing of products with a structure focused on the best possible correlation of weight and strength, for example of a canard rocket. Originality/value The paper introduces precise manufacturing technology of the inner frame for the missile’s control system, which ensures sufficient properties of the material, known as EBM.

Adaptive Hybrid Compensation Control of Inertia Uncertainty and Disturbance for Variable Structure Hypersonic Vehicle

“…Proposals for two terminal sliding mode control strategies to address the finitetime attitude-tracking issue, with environmental interference and model uncertainty, were made in [27]. Thence a smooth input MRS model was suggested in [28], and incorporating backstepping and a finite-time perturbation observer, was devised to address the finite-time attitude-tracking issue in the face of environmental interference and model uncertainty. A rapid terminal sliding mode algorithm was employed in [29] to create a disturbance observer to calculate the uncertainty and disturbance, while guaranteeing that the estimation error converges to the origin.…”